Hi all!
I recently read Marco Rota's "Buon Compleanno, Paperino!", and I enjoyed it a lot (especially with the beautiful illustrations!) interestingly, it's one of those stories where Grandma Duck and Uncle Scrooge are presented as brother and sister. I was wondering: do you guys know any more (good) stories where Scrooge and Grandma are siblings (maybe even stories that show them together during their past/childhood?). I think it's quite an interesting concept. Also, does anyone here know where exactly the idea of Scrooge and Grandma being siblings origins from? My understanding is that Guido Martina invented it (since it wasn't in the original American stories) but I may be mistaken.